FICA tax is the money taken from your paycheck for Social Security and Medicare

FICA stands for Federal Insurance Contributions Act. It is a payroll tax that funds two programs: Social Security (retirement, disability, and survivor benefits) and Medicare (health insurance for people 65 and older, and some younger people with disabilities). When you see "FICA" on your pay stub, it means your employer is withholding a percentage of your gross pay and sending it to the federal government.

FICA is not optional — it comes out of every paycheck if you work as an employee. Self-employed people pay a similar tax called self-employment tax. The money does not go into a personal account with your name on it. Instead, it funds the Social Security and Medicare programs, which pay current retirees and people receiving benefits right now.

You will see two separate FICA deductions on your pay stub: one for Social Security and one for Medicare. Each has its own rate and its own limit on how much you pay per year.

Key Takeaways

  • FICA tax funds Social Security and Medicare, and your employer withholds it from every paycheck automatically.
  • Social Security tax is 6.2% of your wages up to a yearly cap, while Medicare tax is 1.45% with no cap.
  • Your employer pays an equal amount of FICA tax on your behalf, so the total cost to fund these programs is double what you see withheld.
  • The money you pay in FICA now funds current beneficiaries, not a personal retirement account in your name.
  • Self-employed people pay both the employee and employer portions of FICA, called self-employment tax.

How much FICA tax comes out of your paycheck

Social Security tax is 6.2% of your wages, but only up to a yearly earnings cap. That cap changes each year — in 2024 it was $168,600, meaning once you earn that much in a calendar year, no more Social Security tax is withheld from your remaining paychecks. Medicare tax is 1.45% of your wages with no cap, so it continues no matter how much you earn.

Together, these two rates mean 7.65% of your gross pay goes to FICA. If you earn $50,000 a year, roughly $3,825 will be withheld for FICA across all your paychecks. The exact amount depends on how your employer structures your pay and when you receive it during the year.

There is also an additional Medicare tax of 0.9% that applies if your income exceeds certain thresholds — $200,000 for single filers and $250,000 for married couples filing jointly. This extra tax is withheld only on wages above those limits.

Your employer pays FICA tax too

For every dollar of FICA tax withheld from your paycheck, your employer pays an equal amount. You do not see this on your pay stub because it does not reduce your take-home pay, but it is a real cost to your employer. The employer's portion is also 6.2% for Social Security (up to the yearly cap) and 1.45% for Medicare.

This means the total FICA cost for funding Social Security and Medicare is actually 15.3% of your wages — 7.65% from you and 7.65% from your employer. When you hear that Social Security and Medicare are funded by payroll taxes, this employer contribution is part of what makes that possible.

Where your FICA tax money goes

Social Security tax funds three types of benefits: retirement benefits for people 62 and older, disability benefits for workers who cannot work due to a medical condition, and survivor benefits for the families of workers who die. Medicare tax funds hospital insurance (Part A), which covers inpatient hospital stays, skilled nursing, hospice, and home health care.

The money you pay in FICA this year does not sit in an account waiting for your retirement. Instead, it pays for current beneficiaries — people already receiving Social Security or Medicare. When you retire or become may be able to access for Medicare, the FICA taxes paid by workers at that time will fund your benefits. This is called a "pay-as-you-go" system.

Both Social Security and Medicare are administered by the federal government. Social Security is run by the Social Security Administration (SSA), and Medicare is run by the Centers for Medicare & Medicaid Services (CMS), which is part of the Department of Health and Human Services.

FICA tax for self-employed people

If you are self-employed, you pay self-employment tax instead of FICA tax, but the rates and destinations are the same. Self-employment tax is 15.3% of your net self-employment income — 12.4% for Social Security (up to the yearly cap) and 2.9% for Medicare. You pay both the employee and employer portions because you are both.

Self-employed people pay self-employment tax when they file their annual tax return using Schedule SE (Form 1040). You can deduct half of your self-employment tax as an adjustment to income, which reduces your taxable income slightly. The money still goes to Social Security and Medicare the same way it does for employees.

FICA tax on your pay stub

Your pay stub will show FICA deductions broken into two lines: one labeled "Social Security" or "OASDI" (Old-Age, Survivors, and Disability Insurance) and one labeled "Medicare." Each line shows the amount withheld from that paycheck. If you have multiple jobs, each employer withholds FICA separately, and you may end up paying more Social Security tax than the yearly cap allows — you can reclaim the overage when you file your tax return.

Some pay stubs also show "Medicare" and "Additional Medicare" as separate lines if your income is high enough to trigger the extra 0.9% Medicare tax. This additional tax is withheld only on wages above the threshold for your filing status.

How FICA tax differs from income tax

FICA tax and federal income tax are two separate deductions. FICA is a fixed percentage that funds Social Security and Medicare. Federal income tax is withheld based on your W-4 form and funds general government operations. You will see both on your pay stub, and both reduce your take-home pay.

FICA has a yearly cap for Social Security (but not Medicare), while federal income tax has no cap. FICA is also not refundable — you cannot get back more FICA than was withheld, even if you overpay. Federal income tax, by contrast, can result in a refund if you overpaid during the year.

Frequently Asked Questions

What happens to FICA tax if I change jobs?

Each employer withholds FICA tax separately from your paycheck. If you work multiple jobs in the same year, you may pay more Social Security tax than the yearly cap allows because each employer withholds up to the cap independently. You can reclaim the overage by filing your tax return and claiming a credit for excess Social Security tax paid.

Do I get FICA tax back when I file my taxes?

FICA tax is not refundable like federal income tax. However, if you overpaid Social Security tax due to working multiple jobs, you can claim a credit on your tax return. Medicare tax and the additional Medicare tax are also not refundable.

Can I opt out of paying FICA tax?

No. FICA tax is mandatory for all employees and self-employed people. The only exception is certain religious groups that have been granted exemptions by the IRS, and some government employees hired before specific dates who are covered by alternative retirement systems.

Does FICA tax count toward my income tax refund?

No. FICA tax and federal income tax are separate. Your federal income tax refund is based only on federal income tax withheld and credits you are may have access to to. FICA tax does not affect your income tax refund, except in the case of excess Social Security tax paid due to multiple jobs.

Why do I pay FICA tax if I might not receive Social Security benefits?

FICA tax funds not only retirement benefits but also disability and survivor benefits. Even if you never retire, you build a record of earnings that could make you or your family members may be able to access for disability or survivor benefits if you become disabled or die. Additionally, the money you pay funds current beneficiaries as part of the pay-as-you-go system.